There is no problem for pregnant women to test their blood glucose at night, whether it is measuring blood glucose after dinner or before bedtime to reflect the overall situation of blood glucose control. Pregnant women are required to be more active in blood glucose monitoring during pregnancy, because both elevated blood glucose and decreased blood glucose levels can have a more pronounced effect on pregnancy, so they are required to make sure to test blood glucose changes regularly. For example, pregnant women measure fasting as well as post-breakfast, post-lunch and post-dinner blood glucose on Mondays, Wednesdays and Fridays, respectively, every day. If the patient’s blood glucose fluctuates greatly, she will also be asked to monitor the blood glucose at bedtime. A week of blood glucose monitoring can basically grasp the overall situation of the pregnant woman’s blood glucose control.